Veritas File System 4.1 Release Notes (5900-0592, March 2010)

• Named Data Streams
• Removable Storage Checkpoint Creation Mode
• Cluster File Systems
The details of the features are described below:
• Cross-Platform Data Sharing
Cross-platform data sharing (CDS) feature allows serial data sharing among heterogeneous
systems that directly access the physical data storage devices. However, this feature can be
used only with Veritas Volume Manager. See “Product Licensing (Currently not available)”for
more information on licensing support for this feature.
• Multi-Volume Support
Multi-volume support (MVS) feature allows a file system to span multiple volumes
comprising a volume set. In addition, allocation policies can be specified to govern how file
system space should be allocated among these volumes. This feature can be used only with
Veritas Volume Manager. See “Product Licensing (Currently not available)”, for more
information on licensing support for this feature.
The following commands are associated with MVS:
fsapadm The fsapadm command performs administrative tasks, such as
assigning,defining, deleting, and enforcing allocation policies on a specified
Veritas File System.
fsvoladm The fsvoladm command performs administrative tasks, such as adding,
removing, resizing, and encapsulating volumes on a specified Veritas File
System.
The following API functions are associated with MVS:
Table 1-3 Application Programming Interfaces (API) for MVS
DescriptionMVS API
Assigns an allocation policy to the file data and metadata in a Storage
Checkpoint.
vxfs_ap_assign_ckpt()
Assigns an allocation policy for file data and metadata
vxfs_ap_assign_file()
Assigns an allocation policy to all file data and metadata within a
specified file system
vxfs_ap_assign_fs()
Defines an allocation policy with the specified name, flags, order, and
volume names.
vxfs_ap_define()
Reallocates the blocks in a file specified by fd so that all allocations for
the file match the current file allocation policies.
vxfs_ap_enforce_file()
Return information about allocation policies for the file system specified
by the given file descriptor fd.
vxfs_ap_enumerate
Deletes the specified policy mentioned in the file described by the file
descriptor fd.
vxfs_ap_remove()
Fills the fsap_info structure with information for the specified policy
by name fsap->ap_name. The file descriptor fd specifies the mount
point or any file in the file system.
vxfs_ap_query()
Retrieves information about the Storage Checkpoint allocation policies
assigned to the given Storage Checkpoint.
vxfs_ap_query_ckpt()
Retrieves the allocation policies assigned to the file specified by the file
descriptor fd.
vxfs_ap_query_file()
Retrieves allocation policies assigned to the given file system.
vxfs_ap_query_fs()
10 Veritas File System 4.1 Release Notes